Event Scenario/Otherworldly Idol

Saint of the Mist and the Statue From Another World
T-1	To the Front Lines
T-2	The Last Member
T-3	Rapid Advance
T-4	At the Fort
T-5	Retreat for Tomorrow
T-6	Miraculous Rescue
T-7	Labyrinth Forest
T-8	The Voice of Guidance
T-9	Otherworldly Idol
T-10	"The Saint of the Mist"

A small old shrine stood there. The roof had collapsed, exposing a small statue.
No, it's not a statue. It definitely looked at us and twisted its face as if it were sneering.
Vivienne	"EEEEK!? What is that?"
The statue grunted horribly, then opened its large mouth and spat out another one of itself, covered in slimy mucus. It was the same statues that the Mist Monsters had. Is that the main body after all?
The statue that produced it is holding a small stone-like object with great care.
Orleans	"Isn't this... a mist stone? Why is that thing here?"
At that moment, several Mist Monsters appeared from behind the Mist. They swallowed up the statues on the ground, and then, with gurgling cries of glee, hid themselves through the Mist.
Rouen	"An-Anyway, if we destroy that thing, we can get out of the forest, right?"
Orleans	"Don't touch it!"
Just as Rouen reached for the statue, Orleans grabbed her by the neck and pulled her back. In that instant, Mist spewed out from the mist stone held by the statue!
The next moment, a huge Mist Monster stood there with its fangs bared. It picked up the main source of the statues, swallowed it down in one gulp, and then glared at us, its expression twisted into a sneer. Just like that statue earlier.
Rouen	"Whoa! Thank you, Dame Orléans!"
Orleans	"La Pucelle says. This is an unworldly thing that people must not touch."
Rouen	"Unworldly thing? So that idol is an otherworldly god...?"
Conductor	Mist sometimes attracts the strange. This thing must be the thing that led us astray. We don't know what it is.
Conductor	But if it's Mist, that's a different story.
Orleans	"La Pucelle's wish is my wish. We must clear away this pernicious Mist that has been misleading us. Prepare yourself!"
Vivienne	"When we're dealing with Mist Monsters, there's no mystery. It doesn't matter if it's a bit bigger. I'm going to blast them away with a bang, just like I always do."
Rouen	"What an unfortunate end of your destiny to present in front of me, the Holy Angel Rive-Droite! Surrender yourself before my Sacred Holy Power!"
Everyone's ready for battle without orders. Come, Train Knights. It's time to do your duty.

Saint of the Mist and the Statue From Another World
T-1	To the Front Lines
T-2	The Last Member
T-3	Rapid Advance
T-4	At the Fort
T-5	Retreat for Tomorrow
T-6	Miraculous Rescue
T-7	Labyrinth Forest
T-8	The Voice of Guidance
T-9	Otherworldly Idol
T-10	"The Saint of the Mist"